Title:
METHOD FOR MOUNTING MAIN ENGINE BEDPLATE AND GEARBOX BEDPLATE AT BLOCK ERECTION STAGE
Document Type and Number:
WIPO Patent Application WO/2019/000753
Kind Code:
A1
Abstract:
A method for mounting a main engine bedplate and a gearbox bedplate at a block erection stage, which is used for mounting the main engine bedplate and the gearbox bedplate on a bottom block, comprising the following steps: fabricating in sections the main engine bedplate and the gearbox bedplate; welding at proper positions assemblies and sub-assemblies of a bottom of an engine room to erect a bottom block; repeatedly measuring horizontal data of a bottom plate in the bottom block; surveying and delimiting placing lines and corresponding datum lines of the main engine bedplate and the gearbox bedplate on the bottom plate in the bottom block; erecting marker posts (B) at rib positions of the bottom plate in the bottom block, close to the main engine bedplate and the gearbox bedplate, respectively, and marking a height of an axis; hoisting and locating the main engine bedplate and the gearbox bedplate; horizontally adjusting the bedplates to determine an underside allowance, and cutting the allowance; hoisting the main engine bedplate and the gearbox bedplate back to the previous position; tack welding and assembling the bedplates, and reporting for an inspection; constructing according to a welding process and monitoring panel data of the main engine bedplate and the gearbox bedplate; and staying lines for inspection and performing local distortion correction by use of flame. The method can solve the problems of long mounting period in a shipyard, harsh field operation environment, and failure to advance the operation of sighting and boring.
Inventors:
XIONG FEI (CN)
TAN JILIANG (CN)
YAO JIE (CN)
LI WEI (CN)
TAN JILIANG (CN)
YAO JIE (CN)
LI WEI (CN)
Application Number:
PCT/CN2017/108829
Publication Date:
January 03, 2019
Filing Date:
October 31, 2017
Export Citation:
Assignee:
GUANGZHOU SHIPYARD INT CO LTD (CN)
International Classes:
B63B9/00
Domestic Patent References:
| WO1994029170A1 | 1994-12-22 |
Foreign References:
| CN104875847A | 2015-09-02 | |||
| CN102431626A | 2012-05-02 | |||
| CN102815370A | 2012-12-12 | |||
| CN102501944A | 2012-06-20 | |||
| EP0015654A1 | 1980-09-17 |
Other References:
LIU, FEI ET AL.: "A Brief Analysis on Installation Accuracy of Special Ship Shafting", GSI SHIPBUILDING TECHNOLOGY, vol. 6, 30 June 2014 (2014-06-30), pages 32 - 35
WU, ZHEHONG ET AL.: "The Accuracy Control on Block and Hull Erection of Twin Rudder Shafting for Certain Ship", GSI SHIPBUILDING TECHNOLOGY, vol. 3, 30 March 2016 (2016-03-30), pages 25 - 29, 38
WU, ZHEHONG ET AL.: "The Accuracy Control on Block and Hull Erection of Twin Rudder Shafting for Certain Ship", GSI SHIPBUILDING TECHNOLOGY, vol. 3, 30 March 2016 (2016-03-30), pages 25 - 29, 38
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: